CVE-2018-18320 json
An issue was discovered in the Merlin.PHP component 0.6.6 for Asuswrt-Merlin devices.
published 2018-10-15 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10053
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.2%
- EPSS 5.2% chance of exploitation in 30 days, percentile 92%
- public exploits
- 0
- none known
Summary
An issue was discovered in the Merlin.PHP component 0.6.6 for Asuswrt-Merlin devices. An attacker can execute arbitrary commands because exec.php has a popen call. NOTE: the vendor indicates that Merlin.PHP is designed only for use on a trusted intranet network, and intentionally allows remote code execution
Exploit prediction
5.24% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/qoli/Merlin.PHP/issues/26 referenced PoC, tagged "exploit" by a source, unverified
- blog.51cto.com http://blog.51cto.com/010bjsoft/2298828 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
References
-
github.com
/qoli/Merlin.PHP/issues/26
exploit, third-party-advisory
-
blog.51cto.com
/010bjsoft/2298828
exploit, third-party-advisory
Sources
- CVE List CVE-2018-18320
- NVD CVE-2018-18320
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.